S&S Cycle 84-91 BT w/ Stock Bore Super Stock Alternator Style Crankcase - Wrinkle Black

Perfect for stock replacement and high performance applications, these crankcases offer some unique features. Besides being machined for a crank position sensor, they are also compatible with stock flywheel assemblies, primary covers, gearcovers and are clearanced for 38 amp alternator stators.

• A ported breather passageway and a machined breather window allows the air/oil mist to flow from the flywheel cavity to the cam chest of the engine with the least possible restriction
• Clearanced for strokes as long as 5"
• Compatible with stock 1984-'99 flywheel assemblies, primary covers, gearcovers, and clearanced for 38 amp alternator stators, making them perfect for stock replacement or high performance applications
• Crankcase venting can be achieved via two crankcase breathers, the cylinder heads, or both! We recommend using both crankcase breathers in engines larger than 95"
• Machined for installation of a crank position sensor which allows for use in EFI applications and also allows easy installation of S&S IST® Ignition and VFI Fuel Injection
• Machined to accept the stock oil filter assembly used on 1992-'99 big twins
• Relocated cam chest oil pick-up increases gear case scavenging and virtually eliminates oil carry-over at sustained high speeds

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